Electrical Laminated Wood for Oil-immersed Transformer
Name: Electrical Laminated wood
Base Material：Birch wood
Thickness:10-100mm
Standard Size:1000*2000mm/1500*3000mm
Standard：GB/T20634/ IEC61061-1：1998 / DIN7707
Heat Resistance: Class A
Certificat Available :MSDS/Factory Inspection Report
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Product Introduction
Electrical Laminated wood is created by cutting rotationally fine birch into veneers, and then gumming, stacking and hot pressing after dried.It has the advantages of moderate density, high mechanical strength, convenient for vacuum drying, good compatibility with transformer oil, and easy for machining. Also, its dielectric constant is close to that of transformer oil and their insulation coordination is reasonable, so it can be used in transformer oil for a long time.
Advantage
Electrical laminated wood for oil-immersed transformer, produced by Xujue Electrical using birch veneer in the Far East of Russia as raw material which has high density of wood and less knots of panel, possesses the advantages of high product density and excellent dielectric property, and can be used in transformer oil to effectively reduce the dead weight and material cost of transformer.
The mechanical and electrical properties of products are superior to the similar one of other companies.
Its quality is recognized by domestic and foreign large enterprises such as Lens Technology in China and Schneider Electric and sold overseas such as European and American areas.
Application of Electrical Laminated Wood
Can be widely used as insulating and support components in transformer oil, such as coil platen, iron core base plate, trapezoid backing plate, lead mount, clamp and other parts.
Electrical Laminated Wood Parameter
Standard:GB/T 20634.3-2008 / IEC 61061-2:1998
| Item | Unit | DLW101 | DLW201 | DLW202 | DLW301 |
| Appearance | – | Smooth surface, neat edge cutting, no layered cross-section | |||
| Density | g/cm³ | 1.2–1.3 | 1.1–1.2 | 1.1–1.2 | 1.0–1.1 |
| Vertical layer bending strength – A direction | MPa | ≥80 | ≥65 | ≥65 | ≥55 |
| Vertical layer bending strength – B direction | MPa | ≥80 | ≥65 | ≥65 | ≥55 |
| Impact strength – A direction | kJ/m² | ≥15 | ≥13 | ≥13 | ≥10 |
| Impact strength – B direction | kJ/m² | ≥15 | ≥13 | ≥13 | ≥10 |
| Interlayer shear strength | MPa | ≥9 | ≥8 | ≥8 | ≥7 |
| Vertical layer electrical strength (90°C transformer oil) | kV/mm | ≥9 | ≥8 | ≥7 | ≥7 |
| Parallel layer breakdown voltage (90°C transformer oil) | kV | ≥50 | ≥50 | ≥50 | ≥50 |
| Pollution to liquid dielectric | – | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 |
| Shrinkage after drying – A direction | % | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.3 |
| Shrinkage after drying – B direction | % | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.3 |
| Shrinkage after drying – Thickness direction | % | ≤3 | ≤3 | ≤3 | ≤3 |
| Water content | % | ≤6 | ≤6 | ≤6 | ≤6 |
| Oil absorption | % | ≥5 | ≥8 | ≥8 | ≥10 |
| Laminated wood insulating parts in the transformer using range | Transformer rating | ≤110 KV | ≥110 KV | 66–35 KV | ≥35 KV |
Xujue Electrical Laminated Wood Production Workshop
Laminated Wood Packaging & Storage
Leave us a message to get quotation and sample!
If you are interested in our products,, please send us a message and we will contact you as soon as we receive it. Email: info@ztaero.com whatsApp: +8616650273778
